Social strokes interview the third day after his resignation (2019/11/06)

Today is Wednesday, is the agency recruit interview the third day.
Today, the two main surface, the first in the oppo interview, second home in peaceful interview. Morning results of the interview came out, failed, interview results in the afternoon has not come out
in the morning of the interview that overall like a general, but do not know how to hang up, look at the results said to be poor me express, Java infrastructure is poor, it is Main and interviews officer talked about the foundation and framework for Java and the like, asked the difference between springmvc and struts2? What is a servlet? What tomcat that? What are some of the notes generated by the principle of spring is? As well as the deployment of some of the problems generated? Overall there took about 40-50 minutes. And ended
relatively foundation afternoon interview asked, little brother returned from abroad after one up and I introduced myself, was interrupted after the middle, I do not feel I do not know what to say, and then he took rhythm go, ask a lot of basic questions, he said that it was and I discussed it, the first question I was asked ++ i is not atomic, I thought ++ i were to be executed, it is answered, then he asked me two questions multithreading while changing a variable, I started wrong, asked behind locked sychroized and got it, sychronized implementation principle? What is the read-write locks? The second question is asked me questions about the spring, spring instantiate an instance of the service layer is a single case or multiple cases? My answer is a singleton, implement paging database, then check out from the database, if the data additions and deletions others, then how to ensure a good user experience, rather than directly see the data show the page? The last question I asked hashMap stored value, memory is the case of the list? Arrays and ArrayList expansion issues, data structures, database indexes, queries quickly Why? A total of one and a half hour interview, talking and laughing last, as the interviewer in learning